Most people are right-eye dominant, and thus should be right-handed. About 20% are left eye dominant. And thus should be left handed.
A person is “cross-dominant” if the dominant eye and dominant hand are on opposite sides.
Approximately one out of five or six persons is cross dominant.
Cross-dominance influences people in a serious way.
Cross-dominant individuals can never really relax. They are always in a state of mild stress.
- Every individual has a single naturally dominant hand.
We can rephrase this in any of the following ways:
- Every individual either should be a left-handed or should be a right-handed.
- Every individual will find that, with equal training, one hand has superior skill and mental comfort.
Pilot studies related to our hypotheses lead to several broad conclusions:
- Cross-dominance induces an internal level of stress and eventually promotes certain health problems, most notably a predisposition to high blood pressure and strokes.
- Cross-dominance may also be an issue in nervousness, hyperactivity, reduced motor skills, and poor coordination in sports.
- Studies attempting to compare the innate differences between left-handed individuals and right-handed individuals should factor out any cross-dominant individuals.
- Using multiple measures of handedness can be misleading. One should just look at the dominant hand activity, which is usually handwriting.
By negative implication, we believe cross dominance is NOT related to intelligence, visual acuity, interest in sports, schizophrenia, and brain abnormalities.